Willey j



- (No Model.)

W'. J.. P. KINGSLEY.

' STEAM BOILER.

No. 289,6.61. Z Patented Deo. 4, 1883.

I. J I

V I INVENTOR:

N. PETERs. PholoLiibagriphen WlihingiumD-C- UNITED STATES PATENT OFFICE.

IVILLEY J. P. KINGSLEY, OF ROME, NEIV YORK.

STEAM-BOILER.

SPECIFICATION forming part of Letters Patent No. 289,661, dated December4, 1883.

Application filed OctoberlS, 1883. (No model.)

To aZZ whom it may concern.-

Be it known that I, WILLEY JUP. KINGs- LEY, of Rome, Oneida county, NewYork, have invented a new and Improved Steam-Boiler, of which thefollowing is a full, clear, and exact description.

The object of the invention is to improve steam-boilers, as hereinafterdescribed, and. pointed out in the claim.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a sectional elevation of my improved boiler. Fig. 2 is a topview,with part of the cover for conducting the heat removed. Fig. 3 is aplan view of the bottom of the boiler, and Fig. 4 is a plan view of oneof the covers inverted.

The inner tubes, a, entering the fire-box I) through the crown-sheet c,conduct the heat products to the top of the boiler, as usual; butinstead of allowing said heat products to escape directly to thesmoke-pipe. d, I make return-tubes 6 between said inner tubes, a, andthe boiler-shell f, and extending down through the water-leg g, andapply covers h,to--receive the heat from said tubes a and return itthrough tubes e, through theboiler, to the lower end, from which itascends between shell f and the inclosing wall or jacket i to the smokepipe d, thus doubling the length of the run of the heat along theboiler, and much more than doubling the heating-surface, and thuscorrespondingly increasing the steaming-power of the boiler. Togetherwith this return-tube arrangement I attach the circulatingpipes j to thesides of the fire-box, by which considerable advantage is gained bymeans of rapid circulation of water through the interior of 0 escape ofheat by radiation from the top of the cover I make said top double,providing a dead-air space, Z,- or said space may be filled withnon-conducting material, if preferred.

A coal-chute, m, extends through the surrounding jacket 5 to thefire-box, entering the upper part of the fire-box to facilitate thesupplying of fuel to the furnace, and the door a is attached at theouter end of this chute.

The boiler is mounted on the top of a suitable ash-boX, 0, having aninlet-passage, p, for the supply of air, and an opening at q for rakingout the ashes through the door 8 of the inclosing-jacket.

- Having thus described my invention, I claim as new and desire tosecure by Letters Patent In a steam-boiler, the combination, with thetubes a and return-tubes e, of the superposed chamber in cover h,divided into compartments, each compartment communicating with aseparate set of tubes, a, and return-tubes e, as shown and described.

V WILLEY J. I. KINGSLEY.

Witnesses:

Tnos. W. SINeLEroN, K. S. PUTNAM.

